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Hillstone T-Series vs Zscaler Cloud Firewall comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Hillstone T-Series
Ranking in Firewalls
42nd
Average Rating
7.4
Number of Reviews
3
Ranking in other categories
No ranking in other categories
Zscaler Cloud Firewall
Ranking in Firewalls
38th
Average Rating
8.2
Reviews Sentiment
6.3
Number of Reviews
20
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Firewalls category, the mindshare of Hillstone T-Series is 0.5%, up from 0.1% compared to the previous year. The mindshare of Zscaler Cloud Firewall is 1.0%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
Zscaler Cloud Firewall1.0%
Hillstone T-Series0.5%
Other98.5%
Firewalls
 

Featured Reviews

TahirMahmood - PeerSpot reviewer
IT Manager at Zubair Feeds
Is stable and has a user-friendly dashboard and a good interface
We installed Hillstone T-Series after a ransomware attack. The dashboard and user interface are very good We cannot secure a specific IP class with this firewall. Another loophole with Hillstone T-Series is that when we connect through WiFi and turn our hot spot on, all who connect through the…
Carlos Snel - PeerSpot reviewer
Director at Aquila ICT Solutions
Has streamlined secure deployments across large enterprises while offering reliable protection and intuitive management
The centralized management console, also referred to as the Zscaler dashboard, impacts the ability of my customers to respond to security incidents significantly. I see it as user-friendly, and clients are really happy with using it, which motivates them to keep using Zscaler Cloud Firewall because they enjoy the GUI. It's very intuitive, making it easy to navigate alerts and incidents. My clients rarely have questions about where to find specific information once Zscaler Cloud Firewall is running. The interface speaks for itself, requiring little to no additional training, which is a major plus. Advanced threat protection features in Zscaler Cloud Firewall are practically the key component that every customer wants. Unfortunately, it is an option and not included in the basic package. Clients need to pay for the next higher bundle to access it, but practically all clients I have dealt with want this feature 100%. Regarding visibility, I can confirm that Zscaler Cloud Firewall indeed includes a feature for application layer visibility embedded in the service. It provides visibility into what you're doing, which is especially interesting nowadays when discussing AI tools, as companies do not want their employees to copy-paste sensitive information into AI systems. We have seen cases such as Samsung's chip design where sensitive info got exposed. The visibility of applications, including cloud applications and AI tools, is significant for compliance with data policies, and you can also run reports and alerts on it.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"We found some limitations with Fortinet FortiGate, and we are satisfied with Hillstone T-Series right now."
"The only firewall able to monitor traffic from a CCTV network. Can detect unauthorized devices plugged into the network, which standard firewalls can't do."
"We installed Hillstone T-Series after a ransomware attack. The dashboard and user interface are very good."
"It has been stable so far."
"Hillstone supports IOT setup and detecting intrusions from IOT or CCTV connectivity, and with this solution, we can also detect unauthorized devices plugged into the CCTV network and sound the alarm to the administrator."
"Includes advanced tech protection."
"The solution offers good sandboxing."
"It provides in-depth visibility into your network, ensuring that traffic flowing into your organization, be it from offices or individual users, is effectively filtered and secured through multiple layers of protection."
"Zscaler has a good foothold in the market and any new competitor will have to be cognizant of the fact that they will have to be affordable and provide all of the features Zscaler has while being good at threat analysis and filtering."
"Zscaler Cloud Firewall has positively impacted my organization by increasing ROI, especially by reducing costs."
"Zscaler is the Rolls Royce for this kind of solution."
"The technical support from Zscaler was excellent."
"Zscaler is still a very good product."
 

Cons

"Licensing is not cheap."
"Licensing is not cheap, but there are customers who will buy because they understand that this has a cost involved and they will cater their budget for that."
"Another loophole with Hillstone T-Series is that when we connect through WiFi and turn our hot spot on, all who connect through the hotspot get all the functions, and the security does not work."
"They have a very good technical support team, but I think there are some communication issues due to language differences."
"The needed improvements involve scalability, which is something I wish they would address."
"Apart from the issues associated with the product in areas like the DC performance issues and DC failover, Zscaler Cloud Firewall's IP should not have a proxy IP."
"The issue right now is probably that Zscaler is not providing web browser isolation."
"They do not provide a few components that are fundamental to differentiate the products"
"Zscaler Cloud Firewall should have a better understanding of all dynamic cloud applications."
"Instead of the standard license, they should certainly provide customers with the visibility to access and view the logs."
"The product could improve its integration with some legacy systems."
"Zscaler doesn't do intra site segmentation, therefore, if you want segmentation within a branch office, that kind of traffic flow is not well addressed."
 

Pricing and Cost Advice

"On a scale from one to ten, with one being low and ten being high price, I would rate the price of Hillstone T-Series at three. There are no additional costs other than renewal costs."
"We got a much cheaper price than that provided by Fortinet right now."
"The licensing is on a yearly basis. It is somewhere around 30 or 40 pounds per user for our organization."
"It is expensive for small businesses."
"On a scale from one to ten, where one is cheap, and ten is expensive, I rate the solution's pricing an eight out of ten."
"There are different subscription models available."
"There is an annual license required for the use of the Zscaler Cloud Firewall."
"The product is a bit expensive compared to the solutions offered by its competitors, like Palo Alto. There is a need to make yearly payments towards the license in charges associated with the product."
"There are licensing costs, and I would not say that it's a cheap vendor."
"Zscaler is priced too high compared to the cost of Fortinet."
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Top Industries

By visitors reading reviews
Construction Company
15%
Comms Service Provider
13%
Manufacturing Company
11%
Real Estate/Law Firm
7%
Construction Company
11%
Manufacturing Company
10%
Financial Services Firm
8%
Marketing Services Firm
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise2
Large Enterprise13
 

Questions from the Community

Ask a question
Earn 20 points
Which lesser known firewall product has the best chance at unseating the market leaders?
Netscope, Zscaler if they continue route they are on now. FIrewalls needs great deal of automation on each end, datacenter and endpoint. In between you have branch office. So blending EPP and firew...
What is your experience regarding pricing and costs for Zscaler Cloud Firewall?
My experience with pricing, setup cost, and licensing was fine.
What needs improvement with Zscaler Cloud Firewall?
I think Zscaler Cloud Firewall can be improved by adding more features. The needed improvements involve scalability, which is something I wish they would address.
 

Also Known As

Hillstone T-Series Intelligent Next-Generation Firewalls, Hillstone iNGFW
No data available
 

Overview

 

Sample Customers

University of Córdoba
Zenith Live, Azure, Carlsberg Group
Find out what your peers are saying about Hillstone T-Series vs. Zscaler Cloud Firewall and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.